package com.wjh.yygh.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.wjh.yygh.common.exception.YyghException;
import com.wjh.yygh.common.result.ResultCodeEnum;
import com.wjh.yygh.model.hosp.BookingRule;
import com.wjh.yygh.model.hosp.Department;
import com.wjh.yygh.model.hosp.Hospital;
import com.wjh.yygh.model.hosp.Schedule;
import com.wjh.yygh.resopitory.ScheduleRepository;
import com.wjh.yygh.service.DepartmentService;
import com.wjh.yygh.service.HospitalService;
import com.wjh.yygh.service.ScheduleService;
import com.wjh.yygh.vo.hosp.BookingScheduleRuleVo;
import com.wjh.yygh.vo.hosp.ScheduleQueryVo;
import org.joda.time.DateTime;
import org.joda.time.DateTimeConstants;
import org.joda.time.format.DateTimeFormat;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.*;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.aggregation.Aggregation;
import org.springframework.data.mongodb.core.aggregation.AggregationResults;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.stereotype.Service;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StringUtils;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.stream.Collector;
import java.util.stream.Collectors;

@Service
public class ScheduleServiceImpl implements ScheduleService {

    @Autowired
    private ScheduleRepository scheduleRepository;
    @Autowired
    private MongoTemplate mongoTemplate;
    @Autowired
    private HospitalService hospitalService;
    @Autowired
    private DepartmentService departmentService;

    @Override
    public void save(Map<String, Object> paramMap) {
        String s = JSONObject.toJSONString(paramMap);
        Schedule schedule = JSONObject.parseObject(s, Schedule.class);

        Schedule scheduleExist = scheduleRepository.getScheduleByHoscodeAndHosScheduleId(schedule.getHoscode(), schedule.getHosScheduleId());

        if (StringUtils.isEmpty(scheduleExist)) {
            schedule.setCreateTime(new Date());
            schedule.setUpdateTime(new Date());
            schedule.setIsDeleted(0);
            schedule.setStatus(1);
            scheduleRepository.save(schedule);
        } else {
            scheduleExist.setStatus(1);
            scheduleExist.setCreateTime(new Date());
            scheduleRepository.save(scheduleExist);
        }
    }

    /**
     * 查询排班接口接口
     *
     * @param page
     * @param limit
     * @param scheduleQueryVo
     * @return
     */
    @Override
    public Page<Schedule> findDepartment(int page, int limit, ScheduleQueryVo scheduleQueryVo) {

        PageRequest pageRequest = PageRequest.of(page - 1, limit);
        ExampleMatcher exampleMatcher = ExampleMatcher.matching()
                .withStringMatcher(ExampleMatcher.StringMatcher.CONTAINING).withIgnoreCase();
        Schedule schedule = new Schedule();
        BeanUtils.copyProperties(scheduleQueryVo, schedule);
        Example<Schedule> of = Example.of(schedule, exampleMatcher);
        Page<Schedule> all = scheduleRepository.findAll(of, pageRequest);
        return all;

    }

    @Override
    public void remove(String hoscode, String hosScheduleId) {
        Schedule scheduleByHoscodeAndhAndHosScheduleId = scheduleRepository.getScheduleByHoscodeAndHosScheduleId(hoscode, hosScheduleId);

        if (!StringUtils.isEmpty(scheduleByHoscodeAndhAndHosScheduleId)) {
            scheduleRepository.deleteById(scheduleByHoscodeAndhAndHosScheduleId.getId());
        }


    }

    /**
     * @param hoscode
     * @param depcode
     * @param workDate
     * @return
     */
    @Override
    public List<Schedule> getDetailSchedule(String hoscode, String depcode, String workDate) {

        List<Schedule> scheduleByHoscodeAndDepcodeAndWorkDate
                = scheduleRepository.findScheduleByHoscodeAndDepcodeAndWorkDate(hoscode, depcode, this.StrToDate(workDate));
        return scheduleByHoscodeAndDepcodeAndWorkDate;
    }

    public Date StrToDate(String str) {
        SimpleDateFormat format = null;
        if (str.equals("yyyy-MM-dd HH:mm:ss")) {
            format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        }
        if (str.equals("yyyy-MM-dd")) {
            format = new SimpleDateFormat("yyyy-MM-dd");
        }
        Date date = null;
        try {
            date = format.parse(str);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return date;
    }

    @Override
    public Map<String, Object> getBookingScheduleRule(int page, int limit, String hoscode, String depcode) {
        Map<String, Object> result = new HashMap<>();

        //获取预约规则
        Hospital hospital = hospitalService.getByHoscode(hoscode);
        if (null == hospital) {
            throw new YyghException(ResultCodeEnum.DATA_ERROR);
        }
        BookingRule bookingRule = hospital.getBookingRule();

        //获取可预约日期分页数据
        IPage iPage = this.getListDate(page, limit, bookingRule);
        //当前页可预约日期
        List<Date> dateList = iPage.getRecords();
        //获取可预约日期科室剩余预约数
        Criteria criteria = Criteria.where("hoscode").is(hoscode).and("depcode").is(depcode).and("workDate").in(dateList);
        Aggregation agg = Aggregation.newAggregation(
                Aggregation.match(criteria),
                Aggregation.group("workDate")//分组字段
                        .first("workDate").as("workDate")
                        .count().as("docCount")
                        .sum("availableNumber").as("availableNumber")
                        .sum("reservedNumber").as("reservedNumber")
        );
        AggregationResults<BookingScheduleRuleVo> aggregationResults = mongoTemplate.aggregate(agg, Schedule.class, BookingScheduleRuleVo.class);
        List<BookingScheduleRuleVo> scheduleVoList = aggregationResults.getMappedResults();
        //获取科室剩余预约数

        //合并数据 将统计数据ScheduleVo根据“安排日期”合并到BookingRuleVo
        Map<Date, BookingScheduleRuleVo> scheduleVoMap = new HashMap<>();
        if (!CollectionUtils.isEmpty(scheduleVoList)) {
            scheduleVoMap = scheduleVoList.stream().collect(Collectors.toMap(BookingScheduleRuleVo::getWorkDate, BookingScheduleRuleVo -> BookingScheduleRuleVo));
        }
        //获取可预约排班规则
        List<BookingScheduleRuleVo> bookingScheduleRuleVoList = new ArrayList<>();
        for (int i = 0, len = dateList.size(); i < len; i++) {
            Date date = dateList.get(i);

            BookingScheduleRuleVo bookingScheduleRuleVo = scheduleVoMap.get(date);
            if (null == bookingScheduleRuleVo) { // 说明当天没有排班医生
                bookingScheduleRuleVo = new BookingScheduleRuleVo();
                //就诊医生人数
                bookingScheduleRuleVo.setDocCount(0);
                //科室剩余预约数  -1表示无号
                bookingScheduleRuleVo.setAvailableNumber(-1);
            }
            bookingScheduleRuleVo.setWorkDate(date);
            bookingScheduleRuleVo.setWorkDateMd(date);
            //计算当前预约日期为周几
            String dayOfWeek = this.getDayOfWeek(new DateTime(date));
            bookingScheduleRuleVo.setDayOfWeek(dayOfWeek);

            //最后一页最后一条记录为即将预约   状态 0：正常 1：即将放号 -1：当天已停止挂号
            if (i == len - 1 && page == iPage.getPages()) {
                bookingScheduleRuleVo.setStatus(1);
            } else {
                bookingScheduleRuleVo.setStatus(0);
            }
            //当天预约如果过了停号时间， 不能预约
            if (i == 0 && page == 1) {
                DateTime stopTime = this.getDateTime(new Date(), bookingRule.getStopTime());
                if (stopTime.isBeforeNow()) {
                    //停止预约
                    bookingScheduleRuleVo.setStatus(-1);
                }
            }
            bookingScheduleRuleVoList.add(bookingScheduleRuleVo);
        }

        //可预约日期规则数据
        result.put("bookingScheduleList", bookingScheduleRuleVoList);
        result.put("total", iPage.getTotal());
        //其他基础数据
        Map<String, String> baseMap = new HashMap<>();
        //医院名称
        baseMap.put("hosname", hospitalService.gethospName(hoscode));
        //科室
        Department department = departmentService.getDepartment(hoscode, depcode);
        //大科室名称
        baseMap.put("bigname", department.getBigname());
        //科室名称
        baseMap.put("depname", department.getDepname());
//月
        baseMap.put("workDateString", new DateTime().toString("yyyy年MM月"));
//放号时间
        baseMap.put("releaseTime", bookingRule.getReleaseTime());
//停号时间
        baseMap.put("stopTime", bookingRule.getStopTime());
        result.put("baseMap", baseMap);
        return result;
    }

    /**
     * 查询排班
     *
     * @param page
     * @param limit
     * @param hospcode
     * @param depcode
     * @return
     */
    @Override
    public Map<String, Object> getRuleSchedule(Integer page, Integer limit, String hospcode, String depcode) {


        return null;
    }

    @Override
    public Schedule getById(String scheduleId) {
        Optional<Schedule> byId = scheduleRepository.findById(scheduleId);
        Schedule schedule = byId.get();
        return schedule;
    }

    /**
     * 获取可预约日期分页数据
     */
    private IPage<Date> getListDate(int page, int limit, BookingRule bookingRule) {
//当天放号时间
        DateTime releaseTime = this.getDateTime(new Date(), bookingRule.getReleaseTime());
//预约周期
        int cycle = bookingRule.getCycle();
//如果当天放号时间已过，则预约周期后一天为即将放号时间，周期加1
        if (releaseTime.isBeforeNow()) cycle += 1;
//可预约所有日期，最后一天显示即将放号倒计时
        List<Date> dateList = new ArrayList<>();
        for (int i = 0; i < cycle; i++) {
//计算当前预约日期
            DateTime curDateTime = new DateTime().plusDays(i);
            String dateString = curDateTime.toString("yyyy-MM-dd");
            dateList.add(new DateTime(dateString).toDate());
        }
//日期分页，由于预约周期不一样，页面一排最多显示7天数据，多了就要分页显示
        List<Date> pageDateList = new ArrayList<>();
        int start = (page - 1) * limit;
        int end = (page - 1) * limit + limit;
        if (end > dateList.size()) end = dateList.size();
        for (int i = start; i < end; i++) {
            pageDateList.add(dateList.get(i));
        }
        IPage<Date> iPage = new com.baomidou.mybatisplus.extension.plugins.pagination.Page(page, 7, dateList.size());
        iPage.setRecords(pageDateList);
        return iPage;
    }

    /**
     * 将Date日期（yyyy-MM-dd HH:mm）转换为DateTime
     */
    private DateTime getDateTime(Date date, String timeString) {
        String dateTimeString = new DateTime(date).toString("yyyy-MM-dd") + " " + timeString;
        DateTime dateTime = DateTimeFormat.forPattern("yyyy-MM-dd HH:mm").parseDateTime(dateTimeString);
        return dateTime;
    }

    /**
     * 医院名称，科室名称，星期几
     *
     * @param schedule
     */
    private void packageSchedule(Schedule schedule) {
        schedule.getParam().put("hosname", hospitalService.gethospName(schedule.getHoscode()));
        schedule.getParam().put("depname", departmentService.getDepName(schedule.getHoscode(), schedule.getDepcode()));
        schedule.getParam().put("dayOfWeek", this.getDayOfWeek(new DateTime(schedule.getWorkDate())));
    }

    /**
     * 根据日期获取周几数据
     * 工具方法
     *
     * @param dateTime
     * @return
     */
    private String getDayOfWeek(DateTime dateTime) {
        String dayOfWeek = "";
        switch (dateTime.getDayOfWeek()) {
            case DateTimeConstants.SUNDAY:
                dayOfWeek = "周日";
                break;
            case DateTimeConstants.MONDAY:
                dayOfWeek = "周一";
                break;
            case DateTimeConstants.TUESDAY:
                dayOfWeek = "周二";
                break;
            case DateTimeConstants.WEDNESDAY:
                dayOfWeek = "周三";
                break;
            case DateTimeConstants.THURSDAY:
                dayOfWeek = "周四";
                break;
            case DateTimeConstants.FRIDAY:
                dayOfWeek = "周五";
                break;
            case DateTimeConstants.SATURDAY:
                dayOfWeek = "周六";
            default:
                break;
        }
        return dayOfWeek;
    }
}
